402B: Steering Service Flashcards
What is the maximum allowed internal flow rate loss when load testing?
1 gal/min
402B Pg. 36
What is the procedure to reset a clockspring if the tape comes off or was not taped before removal?
1-Turn the cover counter-clockwise until it locks
2-Turn the cover clockwise 4.5 times
3-Align the arrows on the top cover and the bottom housing
4-Tape the assembly and install clockspring
402B Pg. 6
Why must you tape the clockspring together when removing?
To maintain it’s position and prevent damage.
402B Pg. 6
When installing the steering wheel, what could cause damage to the clockspring during assembly?
Make sure the clip on the clockspring lines up with the slot on the steering wheel
402B Pg. 7
When removing tie-rod ends, what should be done to make sure the toe isn’t chaged during reassembly?
Mark the location of each old tie-rod end and count the number or rotations required to remove it . Then install the new tie-rod with the same number of turns.
When testing the poppets, what should the pressure be with 20 lbs of force on the wheel at full turn position?
200 to 400 less than pump relief pressure
402B Pg. 36
When measuring king pins for wear, what is the maximum allowable wear for the bushings when the top of the tire is rocked in and out?
0.015”
Measured at the top and lower bushing
402B Pg. 12
What are the two main hydraulic tests preformed on a power steering system?
- Steering pump pressure
- Steering pump flow rate
402B Pg. 31
Why must you disconnect the battery ground cable when removing the steering column?
To prevent accidental arcing or discharge of the SRS
How should the axle stops be set so the poppets operate properly?
So that there are at lest 1 3/4 steering wheel turns from a straight ahead position to a full left or right turn
402B Pg. 45
When road testing a truck for power steering problems, what are the two general characteristics that must be considered?
- Steering response
- Vehicle handling
402B Pg. 29
When measuring the steering knuckle for vertical wear, what is the maximum amount of wear allowable before the shims and bearings should be inspected?
0.012”
(0.100” CVIP Max)
402B Pg. 14
When load testing the power steering system with a flow meter, what is the maximum time that the valve should be kept closed for?
Max 5 seconds
When installing new bushings into kingpin bores, how should the bushing be oriented?
With the seam of the bushing is 90 degrees to the spindle
402B Pg. 13
What is used to retain the kingpin in the axle and steering knuckle?
Draw keys
402B Pg. 14
What check should always be performed before road testing a vehicle?
Visual insection
Vehicle must be safe enough to go on a road test
402B Pg. 3
Before adjusting the poppets, what else must first be adjusted?
Steering stops
what would a squealing noise indicate during corners on a road test
tire skid is excessive
When trouble shooting steering problems, where is the first place you should look?
Tires
When measuring the cross tube assembly for looseness, what is the maximum allowable wear?
0.060’’
402B Pg. 16
When must you adjust automatic adjusting poppets?
- Changing to a larger tire
- Reducing wheel cut for any reason
- Damaged steering stop bolts that have been replaced
- Steering gear stop bolts that have been replaced
402B Pg. 44
When installing kingpin grease seals, what direction must the lip be facing?
Toward the center of the knuckle
402B Pg. 14
when the pitman arm has been removed from the sector shaft what will happen if the steering gear is turned more than 1 1/2 times
it will affect the initial poppet valve setting and it will have to be reset
what is one check to make before removing a steering wheel
check to see if it has a SRS system
when should you replace a pressure relief valve during a load test
if the pressure rises above the intended spec or the pressure is erratic during the test
if the fastener that holds the pitman arm to the drag link becomes loose and the mounting hole becomes damaged what should you do
replace the pitman arm and draglink
what are the two types of steering gear mounting configurations
standard and inverted
is the clock spring serviceable
no
when will manually adjusted poppets have to be adjusted
. replacing the steering gear with new or rebuilt
. changing the wheel cut for any reason
. replacing damaged steering stop bolts
. changing a damaged component that required the removal and installation of the steering stop
when replacing a draglink end into the drag link tube what must you make sure of
that the threaded end is completely inserted into the drag link tube
if the kingpin is seized can heat be used to remove the kingpin
no follow manufacture spec
if a steering wheel has a master spline
it can only be installed in one position
when replacing the king pin thrust bearing it should be placed where
between the underside of the axle and the bottom steering knuckle yolk
when backing out a manual adjusting screw you should never go farther than
1” - 1 1/16 “ or you risk striping the threads
when checking universal joints you must make sure that they are
in phase with each other
what is important to remember when removing a steering column with a tilt or collapsible steering column
they are under spring tension and should be in the upright position to lessen spring tension
